struct sap_address_t
{
char *psz_address;
- char psz_machine[NI_MAXNUMERICHOST];
+ struct sockaddr_storage orig;
+ socklen_t origlen;
int i_rfd; /* Read socket */
int i_wfd; /* Write socket */
/* A SAP session descriptor, enqueued in the SAP handler queue */
struct sap_session_t {
- char *psz_sdp;
uint8_t *psz_data;
unsigned i_length;
sap_address_t *p_address;
for( i = 0 ; i< p_sap->i_sessions ; i++)
{
sap_session_t *p_session = p_sap->pp_sessions[i];
- FREENULL( p_session->psz_sdp );
FREENULL( p_session->psz_data );
REMOVE_ELEM( p_sap->pp_sessions, p_sap->i_sessions , i );
FREENULL( p_session );
static int announce_SAPAnnounceAdd( sap_handler_t *p_sap,
session_descriptor_t *p_session )
{
- int i_header_size, i;
- char *psz_head, psz_addr[NI_MAXNUMERICHOST];
+ int i;
+ char psz_addr[NI_MAXNUMERICHOST];
vlc_bool_t b_ipv6 = VLC_FALSE, b_ssm = VLC_FALSE;
sap_session_t *p_sap_session;
mtime_t i_hash;
- struct addrinfo hints, *res;
struct sockaddr_storage addr;
socklen_t addrlen;
vlc_mutex_lock( &p_sap->object_lock );
-
- if( p_session->psz_uri == NULL )
- {
- vlc_mutex_unlock( &p_sap->object_lock );
- msg_Err( p_sap, "*FIXME* unexpected NULL URI for SAP announce" );
- msg_Err( p_sap, "This should not happen. VLC needs fixing." );
- return VLC_EGENERIC;
- }
- /* Determine SAP multicast address automatically */
- memset( &hints, 0, sizeof( hints ) );
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_flags = AI_NUMERICHOST;
-
- i = vlc_getaddrinfo( (vlc_object_t *)p_sap, p_session->psz_uri, 0,
- &hints, &res );
- if( i )
+ addrlen = p_session->addrlen;
+ if ((addrlen == 0) || (addrlen > sizeof (addr)))
{
vlc_mutex_unlock( &p_sap->object_lock );
- msg_Err( p_sap, "Invalid URI for SAP announce: %s: %s",
- p_session->psz_uri, vlc_gai_strerror( i ) );
+ msg_Err( p_sap, "No/invalid address specified for SAP announce" );
return VLC_EGENERIC;
}
- addrlen = res->ai_addrlen;
- if ((unsigned)addrlen > sizeof (addr))
- {
- vlc_mutex_unlock( &p_sap->object_lock );
- vlc_freeaddrinfo( res );
- msg_Err( p_sap, "Unsupported address family of size %d > %u",
- res->ai_addrlen, (unsigned) sizeof( addr ) );
- return VLC_EGENERIC;
- }
-
- memcpy (&addr, res->ai_addr, addrlen);
- vlc_freeaddrinfo (res);
+ /* Determine SAP multicast address automatically */
+ memcpy (&addr, &p_session->addr, addrlen);
- switch( addr.ss_family )
+ switch( p_session->addr.ss_family )
{
#if defined (HAVE_INET_PTON) || defined (WIN32)
case AF_INET6:
ipv4 = 0xe0027ffe;
}
+ /* FIXME FIXME FIXME */
if( ipv4 == 0 )
{
msg_Err( p_sap, "Out-of-scope multicast address "
- "not supported by SAP: %s", p_session->psz_uri );
+ "not supported by SAP" );
vlc_mutex_unlock( &p_sap->object_lock );
return VLC_EGENERIC;
}
malloc( sizeof(sap_address_t) );
if( !p_address )
{
- msg_Err( p_sap, "out of memory" );
+ vlc_mutex_unlock( &p_sap->object_lock );
return VLC_ENOMEM;
}
p_address->psz_address = strdup( psz_addr );
p_address->i_wfd = net_ConnectUDP( VLC_OBJECT(p_sap), psz_addr, SAP_PORT, 255 );
if( p_address->i_wfd != -1 )
{
- char *ptr;
-
net_StopRecv( p_address->i_wfd );
- net_GetSockAddress( p_address->i_wfd, p_address->psz_machine,
- NULL );
-
- /* removes scope if present */
- ptr = strchr( p_address->psz_machine, '%' );
- if( ptr != NULL )
- *ptr = '\0';
+ getsockname (p_address->i_wfd, (struct sockaddr *)&p_address->orig,
+ &p_address->origlen);
}
if( p_sap->b_control == VLC_TRUE )
p_sap_session->p_address = p_address;
}
+ if (p_session->origlen == 0)
+ memcpy (&p_session->orig, &p_sap_session->p_address->orig,
+ p_session->origlen = p_sap_session->p_address->origlen);
- /* Build the SAP Headers */
- i_header_size = ( b_ipv6 ? 16 : 4 ) + 20;
- psz_head = (char *) malloc( i_header_size * sizeof( char ) );
- if( psz_head == NULL )
- {
- msg_Err( p_sap, "out of memory" );
- return VLC_ENOMEM;
- }
-
- /* SAPv1, not encrypted, not compressed */
- psz_head[0] = b_ipv6 ? 0x30 : 0x20;
- psz_head[1] = 0x00; /* No authentification length */
-
- i_hash = mdate();
- psz_head[2] = (i_hash & 0xFF00) >> 8; /* Msg id hash */
- psz_head[3] = (i_hash & 0xFF); /* Msg id hash 2 */
-
-#if defined (HAVE_INET_PTON) || defined (WIN32)
- if( b_ipv6 )
+ size_t headsize = 20;
+ switch (p_session->orig.ss_family)
{
- inet_pton( AF_INET6, /* can't fail */
- p_sap_session->p_address->psz_machine,
- psz_head + 4 );
- }
- else
+#ifdef AF_INET6
+ case AF_INET6:
+ headsize += 16;
+ break;
#endif
- {
- inet_pton( AF_INET, /* can't fail */
- p_sap_session->p_address->psz_machine,
- psz_head + 4 );
+ case AF_INET:
+ headsize =+ 4;
+ break;
+ default:
+ msg_Err( p_sap, "Address family %d not supported by SAP",
+ addr.ss_family );
+ vlc_mutex_unlock( &p_sap->object_lock );
+ return VLC_EGENERIC;
}
- memcpy( psz_head + (b_ipv6 ? 20 : 8), "application/sdp", 15 );
-
/* If needed, build the SDP */
if( p_session->psz_sdp == NULL )
{
}
}
- p_sap_session->psz_sdp = strdup( p_session->psz_sdp );
p_sap_session->i_last = 0;
+ p_sap_session->i_length = headsize + strlen (p_session->psz_sdp);
+ p_sap_session->psz_data = malloc (p_sap_session->i_length + 1);
+ if (p_sap_session->psz_data == NULL)
+ {
+ free (p_session->psz_sdp);
+ vlc_mutex_unlock( &p_sap->object_lock );
+ return VLC_ENOMEM;
+ }
- psz_head[ i_header_size-1 ] = '\0';
- p_sap_session->i_length = i_header_size + strlen( p_sap_session->psz_sdp);
+ /* Build the SAP Headers */
+ uint8_t *psz_head = p_sap_session->psz_data;
- p_sap_session->psz_data = (uint8_t *)malloc( sizeof(char)*
- p_sap_session->i_length );
+ /* SAPv1, not encrypted, not compressed */
+ psz_head[0] = 0x20;
+ psz_head[1] = 0x00; /* No authentification length */
- /* Build the final message */
- memcpy( p_sap_session->psz_data, psz_head, i_header_size );
- memcpy( p_sap_session->psz_data+i_header_size, p_sap_session->psz_sdp,
- strlen( p_sap_session->psz_sdp) );
+ i_hash = mdate();
+ psz_head[2] = i_hash >> 8; /* Msg id hash */
+ psz_head[3] = i_hash; /* Msg id hash 2 */
+
+ headsize = 4;
+ switch (p_session->orig.ss_family)
+ {
+#ifdef AF_INET6
+ case AF_INET6:
+ {
+ struct in6_addr *a6 =
+ &((struct sockaddr_in6 *)&p_session->orig)->sin6_addr;
+ memcpy (psz_head + headsize, a6, 16);
+ psz_head[0] |= 0x10; /* IPv6 flag */
+ headsize += 16;
+ break;
+ }
+#endif
+ case AF_INET:
+ {
+ uint32_t ipv4 =
+ (((struct sockaddr_in *)&p_session->orig)->sin_addr.s_addr);
+ memcpy (psz_head + headsize, &ipv4, 4);
+ headsize += 4;
+ break;
+ }
- free( psz_head );
+ }
+
+ memcpy (psz_head + headsize, "application/sdp", 16);
+ headsize += 16;
+
+ /* Build the final message */
+ strcpy( (char *)psz_head + headsize, p_session->psz_sdp);
/* Enqueue the announce */
INSERT_ELEM( p_sap->pp_sessions,
p_sap->i_sessions,
i );
- free( p_mysession->psz_sdp );
free( p_mysession->psz_data );
free( p_mysession );
break;
const session_descriptor_t *p_session,
const sap_address_t *p_addr, vlc_bool_t b_ssm )
{
- int64_t i_sdp_id = mdate();
- int i_sdp_version = 1 + p_sap->i_sessions + (rand()&0xfff);
- char *psz_group, *psz_name, psz_uribuf[NI_MAXNUMERICHOST], *psz_uri,
- *psz_sdp;
- char ipv;
+ char *psz_group, *psz_name, *psz_sdp;
+
+ char *head = StartSDP (p_session->psz_name, p_session->description,
+ p_session->url, p_session->email, p_session->phone,
+ (const struct sockaddr *)&p_session->orig, p_session->origlen,
+ (const struct sockaddr *)&p_session->addr, p_session->addrlen);
+ if (head == NULL)
+ return NULL;
psz_group = p_session->psz_group;
psz_name = p_session->psz_name;
- /* FIXME: really check that psz_uri is a real IP address
- * FIXME: make a common function to obtain a canonical IP address */
- ipv = ( strchr( p_session->psz_uri, ':' ) != NULL) ? '6' : '4';
- if( *p_session->psz_uri == '[' )
- {
- char *ptr;
-
- strlcpy( psz_uribuf, p_session->psz_uri + 1, sizeof( psz_uribuf ) );
- ptr = strchr( psz_uribuf, '%' );
- if( ptr != NULL)
- *ptr = '\0';
- ptr = strchr( psz_uribuf, ']' );
- if( ptr != NULL)
- *ptr = '\0';
- psz_uri = psz_uribuf;
- }
- else
- psz_uri = p_session->psz_uri;
-
- char *sfilter = NULL;
- if (b_ssm)
- {
- if (asprintf (&sfilter, "a=source-filter: incl IN IP%c * %s\r\n",
- ipv, p_addr->psz_machine) == -1)
- return NULL;
- }
-
- int res = asprintf (&psz_sdp,
- "v=0\r\n"
- "o=- "I64Fd" %d IN IP%c %s\r\n"
- "s=%s\r\n"
- "c=IN IP%c %s/255\r\n"
- "t=0 0\r\n"
- "a=tool:"PACKAGE_STRING"\r\n"
- "a=recvonly\r\n"
- "a=type:broadcast\n"
- "%s"
- "m=video %d %s %d\r\n"
- "%s%s%s",
- i_sdp_id, i_sdp_version,
- ipv, p_addr->psz_machine,
- psz_name, ipv, psz_uri,
- (sfilter != NULL) ? sfilter : "",
- p_session->i_port,
+ char *plgroup;
+ if ((psz_group == NULL)
+ || (asprintf (&plgroup, "a=x-plgroup:%s\r\n", psz_group) == -1))
+ plgroup = NULL;
+
+ char *sfilter;
+#if 0
+ if ((!b_ssm)
+ || (asprintf (&sfilter, "a=source-filter: incl IN IP%c * %s\r\n",
+ ipv, p_addr->psz_machine) == -1))
+#else
+# warning FIXME: repair Source Specific Multicast
+#endif
+ sfilter = NULL;
+
+ int res = asprintf (&psz_sdp, "%s" "%s" "%s"
+ "m=video %d %s %d\r\n",
+ head,
+ plgroup ?: "",
+ sfilter ?: "",
+ net_GetPort ((const struct sockaddr *)&p_session->addr),
p_session->b_rtp ? "RTP/AVP" : "udp",
- p_session->i_payload,
- psz_group ? "a=x-plgroup:" : "",
- psz_group ? psz_group : "", psz_group ? "\r\n" : "");
- if (sfilter != NULL)
- free (sfilter);
+ p_session->i_payload);
+ free (plgroup);
+ free (sfilter);
if (res == -1)
return NULL;
projects / vlc / blobdiff